Bazob-stboppeb



0. L. GAMBREL.

v RAZOR STROPPER.

APPLICATION FILED MN. 16, I918- Patented Sept. 16, 1919.

INVENTOR.

ATTORNEY.

ORA GAMBREL, OF DENVER COLORADO.

RAZOR-STROPPEB.

Specification of Letters Patent. Patented Sept. 16, 1919.

Application iiled was 16,1918.- Serial in. 212,025.

To all whom it may concern:

Be it known that I, ORA, L. GAMBREL, citizen of the United States, and resident of the city and county of Denver and State of Colorado, have invented certain new and useful Improvements in Razor-Stroppers, of which the following is a full, clear, and exact description, such as will enable others skilled in the art to which the invention ape pertains to make and use the same.

My invention relates to inprovements in razor blade stroppers, and the invention has for its object, the provision of means for mechanically actuating the blade in engagement with the strop, and for holding the blade in engagement with the strop'until each stroke on the strop has been completed.

Another object of the invention is to provide a razor blade stropping device by means of which any safety razor blade of ordinary use may be sharpened.

Another object of the invention is to provide a razor blade stropper which is operable for automatically reversing the blade at each operation at thebeginning of'the stroke upon a sharpeningstrop.

Another object of the, invention is to provide a razor blade stropping device which .is operable by frictional engagement with a sharpening strop for automatically shifting the opposite sides of the razor blade into engagement with the strop.

Another ob ect of the invention is to provide a razor bladestropping device which is of simple construction, eflicient in operation, and adaptable for stropping all safety razor blades of ordinary use.

With these and other objects in view, the invention will now be described with reference to the accompanying drawing, which forms a part hereof.

In this drawing, Figure 1 is a perspective view of the stropping device Fig. 2 is a plan view of the stropping device, illustrating the manner in which the same. engages with a sharpening strop; Fig. 3 is a crosssectional view of the stropping device taken on the line 3-3 of Fig. 2; and Fig. 4 is a longitudinal sectional view of the stropping device.

Qorresponding and likeparts are referred to 1n the following description, and indicated in all the views of the accompanying drawing by the same reference characters.

Let the numeral 5 designate the handle of the stropping device, the same being referably formed of metal bent to formla c annel 6. The material from whichthehandle5is formed, is-extended from the handle5 at one extremity into a flat segmental part 7. This flat part 7 is cut out to form an opening 8 therethroughofsegmentalshape; Rackteeth9 are formed upon the flat part 7 at the forward extremity of the segmental opening 8.

A razor blade holding member 10 is fixedly secured upon a pin 11, which said pin 11 i journaled in ears 12, said ears 12 being cut out of an oscillating stri 13. This oscillating stri 13 is fulcrurne intermediate its extremities but nearer its rear extremity, within the channel 6 of the handle 5, as shown at 1 1. This oscillating strip 13 is disposed on the under surface of'the fiat part 7 ,and the ears 12 thereof are cut out of and formed by the material of the oscillating member 13, said ears 12 being bent at right angles to the oscillating strip 13, and extended through the opening 8 in the flat.

part 7. One extremity of the-pin 11 is provided with a pinion 15 fixedly secured thereon and meshing with the rack teeth 9. One extremity of a balance spring 16 is pivotally connected with the rearextremity of the'oscillating strip 13, as shown at 17 and the other extremity of the balance spring 16 is fixedly secured in a block 18.

This balance spring 16 is disposed so that its tension will be exerted to normally maintain it in line with the longitudinal axis of the stropping device. The balance spring 16, as well as the fastening block 18,- is positioned in the channel 6 of the handle 5.

The fastening block 18 is secured within said channel by means of fastening devices 19.

- The forward extremity of the oscillating strip 13 is bent rearwardly to form a part '20, which is adapted to frictionally engage with the under side of the sharpening strop 25; Thispart 20 is bifurcatedfis shown at 21, forming two fingers 22 and 23. The extremities of these fingers 22 and 23 are curved outwardly, as shown at 24:, whereby the part is guided over the edge of the strop, causing the strop to bewreadily received between the part 20 and the body of the oscillating strip 13.

The razor blade holding part ,10 is formed by doubling a strip of spring material upon itself, whereby two opposing sides 26 and 27 are formed, the edges of said sides 26 and .27 being bent so that they will-come to-.

gether and engage the opposite sides of a blade 28, as shown at'29. This spring material forming the razor holding part 10 is looped around the journal pin 11, as shown at 30, the said material being so tightly engaged with the journal pin 11' that it is xed against movement independently,- of

said journal pin 11. The two sides 26 and 27 of the blade holding member10 are separated from each other at a point between the journal pin 8 and the outer edge of said member, as shown at 31, whereby a razor 'strop. The fingers 22 and 23 of the part 20 will trictionally engage with the under side of the trop 25, whereby, as the stropping device is moved upon the strop, the oscillating strip 13 will be swung upon its fulcrum 14 to the limit of its movement in one direction, the ear 12 forming stops to the oscillatin movement of the oscillating strip 13.

The balance spring 16 serves to normally maintain the oscillating strip 13 in a position parallel with the fiat'part 7 of the de- 45 vice, whereby the razor blade holding member 10 is maintained in an upright position,

thereby holding the blade 26 out of engagement with the strop until the stroking movement of the device is commenced' As the device is moved in one direction on the strop, the oscillating strip 13 is caused to 'move in the reverse direction against the tension of the balance spring 16, and the rack teeth 9, by their action upon the pinion 15 will cause the blade holding member '10 to swing in the direction opposite to the direction in which the stroke of the device is being made, whereby the blade 28 will be engaged with the strop 25. When a stroke of the device is commenced in the opposite direction, the swinging movement of the blade holding member 10 will be reversed.

IVhile I have described and illustrated herein a specific form of my invention, it is understood that I am not limited thereto,

and that the same may be modified and varied without departing from the spirit of the invention or the scope of the appended claims.

Having thus described the invention, what I claim and desire to seoure byLetters Pat- 1. Arazor blade stropper, comprising a body portion having an opening therethrough, an oscillating strip fulcrumed on said body portion, and a blade holding member carried by said oscillating strip and extended through said opening, said blade holding member adapted to be actuated by said oscillating strip to cause said blade holding member to swing to a position for engaging the razor blade with a sharpening strop. i

2. A razor blade stropper, comprising a body portion, an oscillating strip fulcrumed on said body portion, and having one extremity bent to form a part adapted to engage with the under side of a sharpening strop, the body portion having a flat part disposed above said oscillating strip, said flat part having an opening therein, a blade holding member journaled upon said oscilside of saidbody part and fulcrumed thereto, a blade holding member fulcrumed on said oscillating strip and passed through the opening of said flat portion, said oscillating strip having its outer extremity bent rearwardly and adapted to engagewith the under side of a sharpening strop, a balance spring operatively connected with said oscillating strip normally holding said oscillating strip parallel with said flat portion, rack teeth on said fiat portion and a pinion on said blade holding member meshing with said rack teeth.

1. A stropping device, comprising a body part formingacha-nnel handle and a fiat portion at one extremity of aid handle, said fiat portion having an opening therein, an

oscillating strip disposed on the under side of said body part and fulcrumed thereon, the said oscillating strip having right angle parts thereon etxending through said opening of the fiat portion, a blade holding momber fulcrumed in said right angle parts, said oscillating trip having its outer extremity bent rearwardly and adapted to frictionally engage with the under side of the sharpening strop, a balance spring arranged pair a11e1 with the flat portion and operatively connected with one extremity of said oscillating part for normally holding said osci1- lating part parallel with said flat portion, rack teeth on said fiat portion and a pinion on said blade holding member meshing with said rack teethfwhereby the said blade holding member is maintained in an upright position under the influence of the balance spring.

In testimony whereof, I hereby afiix my signature.

ORA L. GAMBREL.

Copies of this patent may be obtained for five cents each, by addressing the "Commissioner of Patents, Washington, D. 0." 

